plant epiphytic, stoloniferous. leaves about 8, suberect, rosulate, lingulate, not petiolate, bearing a narrow median channel, forming a narrow elliptic water reservoir at base; sheath about 11 cm long, 4 cm wide, oblong-elliptic or long-obovate, purplish on both sides but mainly inside, densely white-lepidote on both sides; blade 20–40 cm long, about 2 cm wide, linear-attenuate, apex acuminate to broadly acute and apiculate-caudate, green on both sides, densely but inconspicuously white-lepidote on the upperside, densely white-lepidote or slightly white-banded beneath, entire, peduncle erect, about 10 cm long, 5 mm in diam; in life, white, brown-lepidote, completely hidden by the leaf sheaths; peduncle bracts ovate -lanceolate, acuminate, erect, 3–4 cm long, about 1 cm wide, white, entire, membranaceous, lepidote on both sides, longer than the internodes, the upper ones congested beneath the inflorescence. inflorescence simple, densely flowered with about 20 flowers, equal to or slightly exceeding the leaf sheaths, subcapitate, about 40 mm long, 20 mm in diamet; floral bracts erect, long obovate, apex acuminate to broadly acute and apiculate white, entire, membranaceous, the lower ones equaling the middle, of the petals, the upper ones slightly exceeding the sepals, lepidote. flowers erect, 35–40 mm long, sessile; sepals about 10 mm long, strongly asymmetric, mucronate, connate for 5 mm, lepidote toward the apex, white, ecarinate; petals white, 30 mm long, naked, free or nearly, blades spreading, spathulate, apex obtuse, bearing 2 callosities equaling the length of the stamens. stamens shorter than the petals; filament complanate the first series free, the second series adnate to the petals for 3/4 of its length; anther sublinear, 4 mm long, base sagitate, apex mucronulate fixed near the base; pollen elliptic, biporate. pistil: ovary elliptic, terete, strangulate near the apex, 8 mm long, white, plain, glabrous; epigynous tube 3 mm long; placentae apical; ovules many, obtuse.Edited from : Martinelli & Leme 1987b. (protologue) Ronnbergia carvalhoi .